













Brush Research GBD40024 FLEX-HONE, 4 (101mm) Diameter, 240 Grit, Silicon Carbide Abrasive (Pack of 1)
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Jake Zeller
> 3 dayUsed it on my 4.9 ford engine. It did a fantastic job.
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BlueBird
> 3 dayHubby says this is a great tool in his engine rebuild.
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Rod Burkhart
> 3 dayworked real good.Used it on a ford flathead motor
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Ab6
> 3 daySpec was crosshatch 30 to 45 degrees. Profiled the wet sleeves first, they were all in spec, so went to town. Low speed drill, brisk in out action achieves great results. Lubricate the hone before every use. Go a little past the return direction so you reduce the low angles at the end of the stroke.
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bluemoose
Greater than one weekWell made and seemed to do a nice consistent job. I just started up the engine I used it on and everything seems to be fine.
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R. Stubbs
> 3 dayPerformed as needed
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Mike M
> 3 dayIve been using these honers for years. Hands down, the best money can buy. Cleans up various bores and preps the cylinders with nice cross-hatching.
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Bob F.
> 3 dayGreat for refreshing any EJ25, they have a 99.5MM or 3.91 inch bore for the 4 inch hone works great for them. I have done 2 of them now, put the drill on low speed and squirt oil on them as you go will give good results.
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Duane Wisozk
> 3 dayWorked great!
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Larry
Greater than one weekWorked perfectly on my Deutz F3L912. Left excellent pattern. Absolutely no surprises. Engine runs clean, smooth, like new.